Headphone case



FIG. 1 is a perspective view of a headphone case showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a perspective view in its close state;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a bottom plan view thereof. 

CLAIM The ornamental design for a headphone case, as shown and described. 